Store your files in local files, running on their Linux "crostini". Apple and android have hundreds, probably thousands of documented attacks, plus known companies attacking them with rats and various spyware. There's an article a day. Apple took apps off their app store to satisfy the Chinese govt and hurt Hong Kong democratic resistance. Google has paid hackers for various attempts to break into chrome os, most of them were really chrome attacks but the signed os images have generally brought safety. Linux even has many known su root attacks plus malware and supply chain attacks.